Markarian’s Chain

Markarian's Chain in Virgo, imaged from a light polluted city

MARKARIAN’S CHAIN

Galaxy cluster filament • Virgo • 50 million light-years from Earth


🗓️
April 2021

Overview

Markarian’s Chain is a striking alignment of galaxies located around 50 million light years from Earth in the constellation Virgo. The galaxies in the chain share a common motion through space and form part of the wider Virgo Cluster. The two brightest members are M84 and M86, which anchor the centre of the scene. Beyond them lie many more distant background galaxies, appearing much smaller and fainter. In total, at least 30 galaxies can be identified within this single image.

Background

Spring in the Northern Hemisphere is known as Galaxy Season because they’re the main targets visible. Unfortunately, galaxies are the toughest targets for my set-up of wide-field telescope in a city. Light pollution makes it a challenge to get any decent signal, and they’re so small that they appear as little more than small specks in my field of view. Makarian’s Chain is a string of galaxies that you actually need a wide-field telescope to image altogether though, so lacking any better targets I decided to give it a go.

The result is mixed… I don’t think that the quality is particularly good, although it’s good that anything’s visible through bright city skies. The integration time was 10 hours, before I fully embraced long integration times. With hindsight I realise I should have aimed for 20. That might have gotten me a better signal-to-noise ratio which is really needed for these faint fuzzies. Maybe I’ll get more data to add into the mix during a future Galaxy Season…

Markarian's Chain in Virgo, imaged from a light polluted city
Framed astrophoto taken from a light-polluted city, available to buy as a fine art print

Imaging details

Date

April 2021

Location

Bristol, UK (Bortle 8)

Telescope

Askar FRA400

Camera

ZWO ASI 2600MC Pro

Mount

Orion Sirius EQ-G

Guiding

WO 32mm + ZWO ASI 120MM Mini

Control

ASIAIR PRO

Software

PixInsight, Lightroom

Image by

Lee Pullen

Filter

Channels

Exposure

No filter

RGB

300 × 2-minutes

10 hours

Imaging details

Date
April 2021

Location
Bristol, UK (Bortle 8)

Telescope
Askar FRA400

Camera
ZWO ASI 2600MC Pro

Mount
Orion Sirius EQ-G

Guiding
WO 32mm + ZWO ASI 120MM Mini

Control
ASIAIR PRO

Software
PixInsight, Lightroom

Image by
Lee Pullen

Filters

No filter
RGB
300 × 2-minutes

Total exposure: 10 hours

Kit list

This is the equipment I used to capture the image.
Affiliate links help support the site at no extra cost to you.

Guidescope: William Optics 32mm Slide-Base Uniguide
Read my review
Buy from Astroshop.eu
Buy from High Point Scientific

Example astrophotography image promoting one-to-one online astrophotography masterclasses

Example source data

Here’s an example single subframe and freshly integrated stack, just with simple stretches applied.

Seestar S50 image

Seestar S50 telescope coming later…






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